Mammoth V-Cube Slim Split F-Series Sizes 830 and 840 - Manual (Page 12)

Mammoth V-Cube Slim Split IOM, MAMM-VCS-IOM-3FA (September 2013) 12
pipe fitting to accommodate the condensate drain con-
nection.
Do not locate any point in the drain system above the
drain connection of any unit.
The condensate piping system must be vented at its
highest point.
Cleaning and Flushing
Before building water is connected to the unit, the build-
ing water system must be flushed clean of particulate
contaminants. Follow the procedures described in this
section.
IMPORTANT! Performance of WSHP units
relies upon a building water supply filtered of
any particulate and chemical contaminants.
Before building water is connected to the unit,
the building water system must be flushed
clean of particulate contaminants. The build-
ing water system is also required to have a
neutral PH balance.
Failure to bring the building water system into
compliance with these requirements, verifi-
able by recorded documentation, will void unit
warranties.
1. Open all air vents.
2. Fill the system at the city water makeup connection.
3. After filling, close all air vents.
4. Open the pressure reducing valve.
5. Check air vents in sequence to bleed off any trapped
air, providing circulation through all components of
the system.
6. Check and repair any leaks in the piping.
7. Start the main circulator with the pressure reducing
valve open.
8. Open the drains at the lowest point(s) in the system
for the initial flush and blow down, making sure city
water fill valves are set to make up water at the same
rate.
9. Check the pressure gauge at the pump suction and
manually adjust the makeup to hold the same posi-
tive steady pressure both before and after opening
the drain valves.
10. Flush the system for at least two hours, or longer if
required, until the drain water is clear and clean.
11. Shut off the supplemental heater (if applicable) and
the circulator pump.
12. Open all drains and vents to completely drain down
the system. .
13. Refill the system with clean water.
14. Test the water using litmus paper for acidity and treat
as required to leave the water slightly alkaline (pH 7.5
to 8.5).
15. The specified percentage of antifreeze may also be
added at this time. Use commercial grade antifreeze
designed for HVAC systems only. Do not use auto-
motive grade antifreeze.
16. Once the system has been filled with clean water and
antifreeze (if used), precaution should be taken to
protect the system from dirty water conditions.
IMPORTANT! Dirty water will result in sys-
tem-wide performance degradation and solids
may clog valves, strainers, flow regulators,
etc. Additionally, the heat exchangers may
become clogged which reduces compressor
service life or causes premature failure.
17. Supply power to all motors and start the circulation
pumps.
18. After full flow has been established through all com-
ponents, including the heat exchanger (regardless of
season), and after air has been vented and loop tem-
peratures stabilized, each of the units will be ready
for check, test, startup, and water balancing.
Electrical Connections
CAUTION! Verify that the unit label voltage
matches building power before connecting
power wires to the unit. Do not apply power to
the unit until all installation work is completed.
Wiring to the unit is routed through the electrical knockout
in the top of the main electrical panel. See . The incoming
power connection is made at the power voltage termi-
nal block and the ground wire is connected to the unit’s
grounding lug. Control wiring enters the unit through the
small knockout on top of the main electrical panel.